Huasheng 142F sputtering after hitting a bump..

New Member

Need some advise on a new install and new engine. Starts fine and runs great, but when I go over a bump, the engine sputters and loses power. Full throttle does nothing. It usually stalls out. If I go over another bump, it comes back to full power with no sputtering.
Thank you in advance for your assistance.

Attachments

Well-Known Member

Gas cap vent issue, float sticking in carb not letting bowl fill correctly, fuel line issue. Just guesses, does it die immediately? Could be electrical as in kill sw short or bad spark plug wire issue. Shorting to ground. I'd be looking on the fuel side if it were me.